广州市国土GPS控制网的建立

THE SETUP OF GUANGZHOU URBAN GPS CONTROL NETWORK

以往城市控制网的建立大多采用三角测量等常规方法来完成 ,随着城市建设的日益发展、通视条件的限制 ,用三角测量等常规方法在城市中布设控制网已较为困难。全球定位系统具有作业速度快、精度高、全天候、不受通视条件限制等特点 。

With urban constructions constraining view, it is difficult to build urban control network by means of triangular surveying. GPS has the advantages of high speed, high precision, all-weather and is without constraint of view.